Pity you didn't post a couple of weeks back. The Identity Store had one of their sales on in Matlock Bath that Sunday. I managed to pick up a huge hide of 1.5-2mm pit tanned leather (some colour imperfections) for under £100. They had tawed leathers in at reasonable prices too. It's a bit hit and miss what you get, but often worth a visit, if for no other reason than they're such nice people!

The only problem that I have with buying leather from Le Prevo is that it's a bit far to visit, so you're left with the vagaries of mail order leather. Other than that, I've a great deal of respect for them.